Skip to content

VideRime Online Learning

Search for:

Home
GK/GA MCQs
Questions?
- Ask Question
- Questions
Direct Links
Submit Article
Contact Us
Membership Registration
Login
Signup Now

Home
GK/GA MCQs
Questions?
- Ask Question
- Questions
Direct Links
Submit Article
Contact Us
Membership Registration
Login
Signup Now

Engineering Materials
0

Engineering Materials Practice Set-8

May 16, 2021

Show paginator

Hide paginator

25%

Page 1 of 4

1. Permalloy is a

Kind of stainless steel

None ferrous alloy

Nickel and iron alloy having high permeability

Polymer

2. Carbon in iron is an example of

Interstitial solid solution

Intermetallic compounds

All of the above

Substitutional solution

3. Cold rolled steel sheets contain carbon of the following order

0.6%

0.2%

0.4%

0.1%

4. Gun metal contains

70 - 78% copper and rest tin

85 - 92% copper and rest tin with little lead and nickel

70% copper and 30% zinc

90% copper and 10% tin

5. Corrosion resistance of steel is increased by adding

Chromium and nickel

Aluminium and zinc

Nickel and molybdenum

Tungsten and sulphur

6. The hardness is the property of a material due to which it

Breaks with little permanent distortion

Can cut another metal

Can be drawn into wires

Can be rolled or hammered into thin sheets

7. Perminvar alloy having constant permeability is an alloy of

Copper, nickel and antimony

Iron, zinc and bismuth

Nickel, copper and zinc

Nickel, copper and iron

8. Argentite is the principal ore or raw material for

Silver

Aluminium

Zinc

Tin

9. Melting point of iron is

1712°C

1489°C

1539°C

1601°C

10. Chromium in steel

Improves wear resistance, cutting ability and toughness

Improves cutting ability and reduces hardenability

Refines grain size and produces less tendency to carburisation, improves corrosion and heat resistant properties

Gives ductility, toughness, tensile strength and anti-corrosion properties

Page 2 of 4

11. The machinability of steel is increased by

Phosphorous, lead and sulphur

Sulphur, graphite and aluminium

Phosphorous and aluminium

Silicon and sulphur

12. Drop forging dies contain carbon of the order of

0.25 to 0.5%

0.7 to 0.9%

0.1 to 0.2%

0.6 to 0.7%

13. Tungsten in high speed steel provides

Sharp cutting edge

Wear resistance

Hot hardness

Toughness

14. The presence of sulphur in pig iron makes

It hard

It brittle

It easily machinable

The casting unsound

15. Cupola produces following material

Wrought iron

Malleable iron

Cast iron

Pig iron

16. The alloying element which reduces the formation of iron sulphide in steel is

Manganese

Chromium

Vanadium

Nickel

17. Delta metal is an alloy of

Iron, aluminium and magnesium

Iron, nickel and copper

Iron, lead and tin

Copper, zinc and iron

18. Beryllium bronze has

(A) High yield point

(C) Both (A) and (B)

(D) None of these

(B) High fatigue limit

19. The alloy used for making electrical resistances and heating elements is

Magnin

Elinvar

Nichrome

Invar

20. Aluminium bronze contains aluminium and copper in the ratio of

40 : 60

10 : 90

60 : 40

50 : 50

Page 3 of 4

21. Phosphor bronze contains

1% phosphorous

None of the above

0.5% of phosphorous

2.5% phosphorous

22. Shock resisting steels should have

Low wear resistance

Toughness

Low hardness

Low tensile strength

23. Weld decay is the phenomenon found with

Stainless steel

Nonferrous materials

Cast iron

Mild steel

24. High carbon steel carries carbon percentage

0.6 to 0.8%

0.8 to 1.5%

0.1 to 0.3%

0.3 to 0.6%

25. Connecting rod is usually made of

Low carbon steel

High carbon steel

Medium carbon steel

Aluminium

26. Nimonic contains __________ percentage of nickel as that of Inconel.

Same

More

None of these

Less

27. Sulphur in cast iron

Makes the iron soft and easily machinable

Aids fusibility and fluidity

Increases hardness and brittleness

Make the iron white and hard

28. Bronze contains

85 - 92% copper and rest tin with little lead and nickel

70% copper and 30% zinc

70 - 75% copper and rest tin

90% copper and 10% tin

29. Steel made from phosphate iron is

Tough

Ductile

Brittle

Hard

30. Compressive strength of grey cast iron in tonnes/cm is of the order of

1015

57

35

710

Page 4 of 4

31. Which is false statement about tempering? Tempering is done to

Improve toughness

Release stresses

Improve ductility

Improve machinability

32. Free cutting steels

Require least cutting force

Are used where ease in machining is the criterion

Contain carbon in free form

Do not exist

33. The hardness of steel increases if it contains

Martensite

Austenite

Pearlite

Cementite

34. The crystal structure of brass is

B.C.C.

Orthorhombic crystalline structure

F.C.C.

H.C.P.

35. An example of amorphous material is

Lead

Zinc

Glass

Silver

36. Manganese in steel increases its

Tensile strength

Hardness

Fluidity

Ductility

37. Preheating is essential in welding

Cast iron

High speed steel

All nonferrous materials

All of the above

38. Which of the following is used for bearing liner?

Bronze

Gun metal

Babbitt metal

Bell metal

39. Hardness of upper bainite (acicular structure) is about

RC 65

RC 80

RC 57

RC 48

40. Which of the following is the binding material in cemented carbides?

Nickel

Iron

Vanadium

Cobalt

Loading...

Share this Now with Friends:

WhatsApp
Telegram
More

Related

Tags: Engineering Materials Mechanical Engineering

VideRime

A Demrot is the founder of VideRime Online Learning, a leading engineering website. He did his BE Civil and M.Tech Structure from RGPV University, Bhopal and has been working as an Assistant Professor in a reputed college.

Leave a ReplyCancel reply

This site uses Akismet to reduce spam. Learn how your comment data is processed.

Ads by Google

Recent Posts

Key Benefits of Phd in any Discipline
[PDF] Basic Civil Engineering PDF by S.S. Bhavikatti
Best 20 trending Topics for final year major projects in Civil Engineering
Explain different types of road bridges through neat sketches
What are the best video editing softwares
Explain the working of marshalling yard through neat diagram
Classification of Indian Railways in detail
What do you mean by coning of wheels? Also discuss its advantages.

Membership Registration

Secured Payment

Protection

DMCA.com Protection Status

VideRime.com is the leading online Learning portal. ©2026 All Rights Reserved.

Login Now

Google

OR

* Username

*

* Password

*

Remember me

Forgot Password

Don't have account? Register Now

VideRime Registration Form

* Username

*

* Username

*

* Last Name

*

* Email Address

*

* Confirm Email Address

*

* Password

*

Strength: Very Weak

(Use Cropper to set image and
use mouse scroller for zoom image.)

Already have an account? Login